Invoking Lambda Functions

HolaCloud Lambda supports direct admin calls, public calls, owner-scoped mux routes, and a small set of service inspection endpoints.

Admin Invocation

Use /api/v0/run/{lambda_id} when the client can send X-Glue-Authentication. The endpoint accepts any HTTP method.

curl -X POST "https://api.hola.cloud/api/v0/run/YOUR_LAMBDA_ID" \
  -H "X-Glue-Authentication: YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "key": "value"
  }'

POST /api/v0/run/YOUR_LAMBDA_ID HTTP/1.1
Host: api.hola.cloud
X-Glue-Authentication: YOUR_TOKEN
Content-Type: application/json

{
    "key": "value"
  }

package main

import (
	"fmt"
	"io"
	"net/http"
	"encoding/json"
	"strings"
)

func main() {
	payload := map[string]any{"key": "value"}
	bodyBytes, err := json.Marshal(payload)
	if err != nil {
		panic(err)
	}
	body := string(bodyBytes)

	req, err := http.NewRequest("POST", "https://api.hola.cloud/api/v0/run/YOUR_LAMBDA_ID", strings.NewReader(body))
	if err != nil {
		panic(err)
	}
	req.Header.Set("X-Glue-Authentication", "YOUR_TOKEN")
	req.Header.Set("Content-Type", "application/json")

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(responseBody))
}

<?php
$payload = ['key' => 'value'];
$body = json_encode($payload);

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://api.hola.cloud/api/v0/run/YOUR_LAMBDA_ID',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => $body,
    CURLOPT_HTTPHEADER => [
        'X-Glue-Authentication: YOUR_TOKEN',
        'Content-Type: application/json',
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
curl_close($ch);

echo $response;

import requests

import json

headers = {
    "X-Glue-Authentication": "YOUR_TOKEN",
    "Content-Type": "application/json",
}

payload = {"key": "value"}
body = json.dumps(payload)

response = requests.request(
    "POST",
    "https://api.hola.cloud/api/v0/run/YOUR_LAMBDA_ID",
    headers=headers,
    data=body
)

print(response.text)

const payload = {"key": "value"};

const response = await fetch("https://api.hola.cloud/api/v0/run/YOUR_LAMBDA_ID", {
  method: "POST",
  headers: {
    "X-Glue-Authentication": "YOUR_TOKEN",
    "Content-Type": "application/json"
  },
  body: JSON.stringify(payload)
});

console.log(await response.text());

const payload = {"key": "value"};

const response = await fetch("https://api.hola.cloud/api/v0/run/YOUR_LAMBDA_ID", {
  method: "POST",
  headers: {
    "X-Glue-Authentication": "YOUR_TOKEN",
    "Content-Type": "application/json"
  },
  body: JSON.stringify(payload)
});

const text = await response.text();
console.log(text);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.Map;
import java.util.List;

public class Main {
    public static void main(String[] args) throws Exception {
        var payload = Map.of("key", "value");
        var body = new ObjectMapper().writeValueAsString(payload);

        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.hola.cloud/api/v0/run/YOUR_LAMBDA_ID"))
            .method("POST", HttpRequest.BodyPublishers.ofString(body))
            .header("X-Glue-Authentication", "YOUR_TOKEN")
            .header("Content-Type", "application/json")
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

Public Invocation

Use /run/{lambda_id} for webhooks, browser calls, and other clients that should not send admin credentials. The endpoint accepts any HTTP method.

curl -X POST "https://api.hola.cloud/run/YOUR_LAMBDA_ID" \
  -H "Content-Type: application/json" \
  -d '{
    "key": "value"
  }'

POST /run/YOUR_LAMBDA_ID HTTP/1.1
Host: api.hola.cloud
Content-Type: application/json

{
    "key": "value"
  }

package main

import (
	"fmt"
	"io"
	"net/http"
	"encoding/json"
	"strings"
)

func main() {
	payload := map[string]any{"key": "value"}
	bodyBytes, err := json.Marshal(payload)
	if err != nil {
		panic(err)
	}
	body := string(bodyBytes)

	req, err := http.NewRequest("POST", "https://api.hola.cloud/run/YOUR_LAMBDA_ID", strings.NewReader(body))
	if err != nil {
		panic(err)
	}
	req.Header.Set("Content-Type", "application/json")

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(responseBody))
}

<?php
$payload = ['key' => 'value'];
$body = json_encode($payload);

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://api.hola.cloud/run/YOUR_LAMBDA_ID',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => $body,
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
curl_close($ch);

echo $response;

import requests

import json

headers = {
    "Content-Type": "application/json",
}

payload = {"key": "value"}
body = json.dumps(payload)

response = requests.request(
    "POST",
    "https://api.hola.cloud/run/YOUR_LAMBDA_ID",
    headers=headers,
    data=body
)

print(response.text)

const payload = {"key": "value"};

const response = await fetch("https://api.hola.cloud/run/YOUR_LAMBDA_ID", {
  method: "POST",
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify(payload)
});

console.log(await response.text());

const payload = {"key": "value"};

const response = await fetch("https://api.hola.cloud/run/YOUR_LAMBDA_ID", {
  method: "POST",
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify(payload)
});

const text = await response.text();
console.log(text);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.Map;
import java.util.List;

public class Main {
    public static void main(String[] args) throws Exception {
        var payload = Map.of("key", "value");
        var body = new ObjectMapper().writeValueAsString(payload);

        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.hola.cloud/run/YOUR_LAMBDA_ID"))
            .method("POST", HttpRequest.BodyPublishers.ofString(body))
            .header("Content-Type", "application/json")
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

The lambda receives request data through req, including the request method, path, headers, query values, and body.

Webhook Usage

Configure an external service to send events to:

1https://api.hola.cloud/run/YOUR_LAMBDA_ID

Example webhook handler:

1export default (req) => {
2  return {
3    body: {
4      received: true,
5      event: req.headers["x-github-event"],
6      payload: req.body
7    }
8  };
9};

Mux Router

The mux router forwards owner-scoped routes through /mux/{owner_id}/*. It accepts any HTTP method.

curl -X GET "https://api.hola.cloud/mux/OWNER_ID/any/path/here"

GET /mux/OWNER_ID/any/path/here HTTP/1.1
Host: api.hola.cloud

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, err := http.NewRequest("GET", "https://api.hola.cloud/mux/OWNER_ID/any/path/here", nil)
	if err != nil {
		panic(err)
	}

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(responseBody))
}

<?php
$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://api.hola.cloud/mux/OWNER_ID/any/path/here',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'GET',
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
curl_close($ch);

echo $response;

import requests

response = requests.request(
    "GET",
    "https://api.hola.cloud/mux/OWNER_ID/any/path/here"
)

print(response.text)

const response = await fetch("https://api.hola.cloud/mux/OWNER_ID/any/path/here", {
  method: "GET"
});

console.log(await response.text());

const response = await fetch("https://api.hola.cloud/mux/OWNER_ID/any/path/here", {
  method: "GET"
});

const text = await response.text();
console.log(text);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.hola.cloud/mux/OWNER_ID/any/path/here"))
            .method("GET", HttpRequest.BodyPublishers.noBody())
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

The owner_id identifies the HolaCloud owner. The remaining path is forwarded to the lambda routing logic.

Ongoing Invocations

Check currently running invocations:

curl "https://api.hola.cloud/ongoing"

GET /ongoing HTTP/1.1
Host: api.hola.cloud

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, err := http.NewRequest("GET", "https://api.hola.cloud/ongoing", nil)
	if err != nil {
		panic(err)
	}

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(responseBody))
}

<?php
$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://api.hola.cloud/ongoing',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'GET',
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
curl_close($ch);

echo $response;

import requests

response = requests.request(
    "GET",
    "https://api.hola.cloud/ongoing"
)

print(response.text)

const response = await fetch("https://api.hola.cloud/ongoing", {
  method: "GET"
});

console.log(await response.text());

const response = await fetch("https://api.hola.cloud/ongoing", {
  method: "GET"
});

const text = await response.text();
console.log(text);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.hola.cloud/ongoing"))
            .method("GET", HttpRequest.BodyPublishers.noBody())
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

Current User

The /me endpoint returns information for the authenticated user:

curl "https://api.hola.cloud/me" \
  -H "X-Glue-Authentication: YOUR_TOKEN"

GET /me HTTP/1.1
Host: api.hola.cloud
X-Glue-Authentication: YOUR_TOKEN

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, err := http.NewRequest("GET", "https://api.hola.cloud/me", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("X-Glue-Authentication", "YOUR_TOKEN")

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(responseBody))
}

<?php
$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://api.hola.cloud/me',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'GET',
    CURLOPT_HTTPHEADER => [
        'X-Glue-Authentication: YOUR_TOKEN',
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
curl_close($ch);

echo $response;

import requests

headers = {
    "X-Glue-Authentication": "YOUR_TOKEN",
}

response = requests.request(
    "GET",
    "https://api.hola.cloud/me",
    headers=headers
)

print(response.text)

const response = await fetch("https://api.hola.cloud/me", {
  method: "GET",
  headers: {
    "X-Glue-Authentication": "YOUR_TOKEN"
  }
});

console.log(await response.text());

const response = await fetch("https://api.hola.cloud/me", {
  method: "GET",
  headers: {
    "X-Glue-Authentication": "YOUR_TOKEN"
  }
});

const text = await response.text();
console.log(text);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.hola.cloud/me"))
            .method("GET", HttpRequest.BodyPublishers.noBody())
            .header("X-Glue-Authentication", "YOUR_TOKEN")
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

OpenAPI Specification

HolaCloud exposes the Lambda OpenAPI document at:

curl -X GET "https://api.hola.cloud/openapi"

GET /openapi HTTP/1.1
Host: api.hola.cloud

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, err := http.NewRequest("GET", "https://api.hola.cloud/openapi", nil)
	if err != nil {
		panic(err)
	}

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(responseBody))
}

<?php
$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://api.hola.cloud/openapi',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'GET',
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
curl_close($ch);

echo $response;

import requests

response = requests.request(
    "GET",
    "https://api.hola.cloud/openapi"
)

print(response.text)

const response = await fetch("https://api.hola.cloud/openapi", {
  method: "GET"
});

console.log(await response.text());

const response = await fetch("https://api.hola.cloud/openapi", {
  method: "GET"
});

const text = await response.text();
console.log(text);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.hola.cloud/openapi"))
            .method("GET", HttpRequest.BodyPublishers.noBody())
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}