res() — express Function Reference

Architecture documentation for the res() function in response.js from the express codebase.

Function javascript ExpressCore PrototypalExtension calls 2

Entity Profile

ExpressCore→ PrototypalExtension→ res() — express Function Reference

Dependency Diagram

graph TD
  654363af_a1b9_0807_17be_896895e23cd5["res()"]
  e8de3182_7771_c885_d297_ca4255bae3a6["response.js"]
  654363af_a1b9_0807_17be_896895e23cd5 -->|defined in| e8de3182_7771_c885_d297_ca4255bae3a6
  3a8eeb41_c3ab_1043_2f9b_9c59cbe60e16["stringify()"]
  654363af_a1b9_0807_17be_896895e23cd5 -->|calls| 3a8eeb41_c3ab_1043_2f9b_9c59cbe60e16
  7cf11697_b32b_3362_0b5d_beb3602edbdc["sendfile()"]
  654363af_a1b9_0807_17be_896895e23cd5 -->|calls| 7cf11697_b32b_3362_0b5d_beb3602edbdc
  style 654363af_a1b9_0807_17be_896895e23cd5 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

lib/response.js lines 64–76

res.status = function status(code) {
  // Check if the status code is not an integer
  if (!Number.isInteger(code)) {
    throw new TypeError(`Invalid status code: ${JSON.stringify(code)}. Status code must be an integer.`);
  }
  // Check if the status code is outside of Node's valid range
  if (code < 100 || code > 999) {
    throw new RangeError(`Invalid status code: ${JSON.stringify(code)}. Status code must be greater than 99 and less than 1000.`);
  }

  this.statusCode = code;
  return this;
};