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-rw-r--r--lib/global.js32
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/global.js b/lib/global.js
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+++ b/lib/global.js
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+'use strict'
+
+// We include a version number for the Dispatcher API. In case of breaking changes,
+// this version number must be increased to avoid conflicts.
+const globalDispatcher = Symbol.for('undici.globalDispatcher.1')
+const { InvalidArgumentError } = require('./core/errors')
+const Agent = require('./agent')
+
+if (getGlobalDispatcher() === undefined) {
+ setGlobalDispatcher(new Agent())
+}
+
+function setGlobalDispatcher (agent) {
+ if (!agent || typeof agent.dispatch !== 'function') {
+ throw new InvalidArgumentError('Argument agent must implement Agent')
+ }
+ Object.defineProperty(globalThis, globalDispatcher, {
+ value: agent,
+ writable: true,
+ enumerable: false,
+ configurable: false
+ })
+}
+
+function getGlobalDispatcher () {
+ return globalThis[globalDispatcher]
+}
+
+module.exports = {
+ setGlobalDispatcher,
+ getGlobalDispatcher
+}